Improvement in snow-plows



2 Sheets--Sheet 1.

0. HEGGEM.

Improvement in Snow Plows.

Patented March 19, 1872.

2 Sheets--Sheet 2.

O. HEGGEM.

Improvement in Snow Plows.

Patented March 19, 1872.

OLE IIEGCEM, Von CHICAGO, ILLINOIS.

IMPROVEMENT IN SNOW-FLOWS.

Specification forming part of Letters Patent No. 124,739, dated March 19, 1872.

i SPECIFICATION.

I, OLE IIEGGEM, of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Snow-Flows, of which the following is a specification, reference being had to the accompanying drawing, in which i Figure l represents a top view of the plows; Fig. 2, a front elevation; Fig. 8, a rear view; Fig. 4, a vertical sectional view at the line x in Fig. 1, showing the curve ofthe side of the plow; and Fig. 5, an end view of one of the sides of the plow detached, with its attachments removed, showing the shape of the outer ends of the side pieces.

N ature cmd Object of my Invention.

My invention relates to th at class of snowplows that are provided with screws for removing the snow; and it consists in the special construction of the mold-board of the plow, as well as the special combination and arrange; ment of parts hereinafter fully described.

General Description. A represents the main part of the snow-plow,

composed of two flaring curved sides, the curvature of which is clearly shown in Figs. 4 and 5. B is the point of the plow; and it is similar in shape to the point of other snow-plows. U serves as a cutter to cut the snow, and it also serves to strengthen the point. D is a worm or screw, and D' is a shaft, to which it is rigidly attached, having bearings at E 5 and as the plow is moved forward the screws are turned, as hereafter described, and carry the snow to the side of the track. These screws D form an angle to the track,as shown, so as to elevate the snow as it is carried off. F is a collar on the shaft D', to prevent the snow from forcing it forward in its front journal. H are beve1-gear wheels on the shafts D', by which they are driven. I is a cross-shaft, with bearings on the supports J. These supports rest on the frame K of the plow'. L are bevel-gear wheels on the cross-shaft I, and they engage with the wheels II. G is also a cross-shaft, having bearings in the supports G', which also rest on the frame K. This shaft G is provided with cranks g g at its ends; and G" is a gearwheel rigidly attached to it, so as to engage with the gear-wheel I' upon the shaft I. P P are pitmen, attached to the ends of the cranks g g, and connected to the driving-gear of the locomotive, when the plow is attached to a 1ocoinotive, so that, as the pitmen turn the cranks g g, the gearing on the plow is put in operation, and the worms or screws Dare turned and carry the snow to the side of the track as the engine moves forwardi IWI are stays for strengthening the plow, and N are braces eX- tending from said stays to the frame K. O are ordinary car-wheels, the shaft or axle of which has bearings on the frame K, and these wheels support the frame above the track. The mold-boards A are made thin and curved, as shown, so as to extend over the screws and cause them to carry the snow back and discharge it at the side of the track. Il also strengthen these mold-boards by curved back pieces M.

Claims.

1. The thin curved mold-boards A, extending over the screws, the back pieces M, braced from the frame, and the screws D, when all are constructed and combined substantially as and for the purposes described.

2. The combination ofthe 1uoldboards A, the screws D, and the bearings E, and washers F, when all are constructed substantially as and for the purposes specified. v

v OLE HEGGEM. Witnesses:

FRANCIS F. WARNER,

HEINRICH F. BRUNs. 

